47 citations · 94 across the 7 of their papers we have counts for
7 papers
QED of lossy cavities: operator and quantum-state input-output relations
M. Khanbekyan, L. Knöll, D. -G. Welsch +2
Within the framework of exact quantization of the electromagnetic field in dispersing and absorbing media the input-output problem of a high- cavity is studied, with special emp…
Casimir stress on lossy magnetodielectric spheres
Christian Raabe, Ludwig Knöll, Dirk-Gunnar Welsch
An expression for the Casimir stress on arbitrary dispersive and lossy linear magnetodielectric matter at finite temperature, including left-handed material, is derived and applied…
Input-output relations at dispersing and absorbing planar multilayers for the quantized electromagnetic field containing evanescent components
Mikayel Khanbekyan, Ludwig Knöll, Dirk-Gunnar Welsch
By using the Green-function concept of quantization of the electromagnetic field in dispersing and absorbing media, the quantized field in the presence of a dispersing and absorbin…
Entanglement transformation at dielectric four-port devices
S. Scheel, L. Knoll, T. Opatrny +1
Quantum communication schemes widely use dielectric four-port devices as basic elements for constructing optical quantum channels. Since for causality reasons the permittivity is n…
QED in dispersing and absorbing media
Ludwig Knoll, Stefan Scheel, Dirk-Gunnar Welsch
After giving an outline of the quantization scheme based on the microscopic Hopfield model of a dielectric bulk material, we show how the classical phenomenological Maxwell equatio…
Generating and monitoring Schrödinger cats in conditional measurement on a beam splitter
M. Dakna, J. Clausen, L. Knoll +1
Preparation of Schrödinger-cat-like states via conditional output measurement on a beam splitter is studied. In the scheme, a mode prepared in a squeezed vacuum is mixed with a mod…